Finding the Fourth Proportional to 105,482.83, 145,567.67 and 57,735.15

Step by Step Solution

1. Step 1: Write the proportion equation
   105,482.83 : 145,567.67 = 57,735.15 : x
2. Step 2: Convert to fraction form
   105,482.83/145,567.67 = 57,735.15/x
3. Step 3: Cross multiply
   105,482.83x = 145,567.67 × 57,735.15
4. Step 4: Simplify right side
   105,482.83x = 8,404,371,262.60
5. Step 5: Solve for x
   x = 8,404,371,262.60/105,482.83
6. Step 6: Final answer
   x = 79,675.25